Make cake. Prepare batter following recipe directions. Bake and cool one 8 in. cake layer. Position on cake pedestal.
Prepare buttercream icing following recipe directions. Tint icing following color formulas above. Use tip 7, a cut disposable decorating bag and blue icing to pipe dot button in center of cake.
Make fondant confetti. Tint fondant following color formulas above. Combine a ½ in. ball of brown fondant with 1 oz. white fondant. Use fondant roller with pink guide rings to roll out ivory fondant 1/16 in. thick. Spray ivory fondant with gold Color Mist food color spray. Let set, about 15 minutes. Use narrow end of tip 7 to cut approximately 140 circles. Set aside confetti and reserve remaining ivory fondant.
Decorate cake. Use toothpick to mark message pattern on cake top. Use tip 4, a cut disposable decorating bag and green icing to pipe message and arrow. Position confetti circles on corners of cake top, placing close together at corners and gradually farther apart toward center of cake.
Make fondant tassel and cord. For tassel, roll out green fondant 1/16 in. thick. Use knife to cut a strip, 6 in. long x 4 in. wide. Cut slits 1/8 in. wide, leaving 3/4 in. uncut at top of strip. Roll up strip. For knot, cut a strip, 1 in. long x 1/8 in. wide. Wrap around top of tassel. For band at top of tassel, roll out reserved ivory fondant 1/16 in. thick. Cut a strip, 1 1/2 in. long x 1/4 in. wide. Use damp brush to attach band to tassel. Plase tassel on side of cake, with fringe resting on cake pedestal.
For cord, roll two logs, 4 in. long x 1/16 in. dia. Twist logs together and position on cake top from button to tassel.